My excel SOLVER isnt working so I need help!

A linear programming computer package is needed.

per pound for Brazilian Natural and $$0\mathrm{.}62$ per pound for Colombian Mild. The compositions of each coffee blend are as follows.

DeCaf, the production cost for the DeCaf blend is $$1\mathrm{.}05$ per pound. Packaging costs for both products are $$0\mathrm{.}25$ per pound.

Colombian beans purchased to produce DeCaf.$)$

Max

s$.$t$.$

Regular $\%$ constraint

DeCaf $\%$ constraint

Pounds of Regular

Pounds of DeCaf

$($b$)$ What is the optimal solution?

$(BR,BD,CR,CD)=1$

$($c$)$ What is the contribution to profit $($in $$)?($Round your answer to two decimal places.$)$

$